arrow_back_ios

Main Menu

See All Acoustic End-of-Line Test Systems See All DAQ and instruments See All Electroacoustics See All Software See All Transducers See All Vibration Testing Equipment See All Academy See All Resource Center See All Applications See All Industries See All Insights See All Services See All Support See All Our Business See All Our History See All Our Sustainability Commitment See All Global Presence
arrow_back_ios

Main Menu

See All Actuators See All Combustion Engines See All Durability See All eDrive See All Transmission & Gearboxes See All Turbo Charger See All DAQ Systems See All High Precision and Calibration Systems See All Industrial electronics See All Power Analyser See All S&V Hand-held devices See All S&V Signal conditioner See All Accessories See All DAQ Software See All Drivers & API See All nCode - Durability and Fatigue Analysis See All ReliaSoft - Reliability Analysis and Management See All Test Data Management See All Utility See All Vibration Control See All Acoustic See All Current / voltage See All Displacement See All Load Cells See All Pressure See All Strain Gauges See All Torque See All Vibration See All LDS Shaker Systems See All Power Amplifiers See All Vibration Controllers See All Accessories for Vibration Testing Equipment See All Training Courses See All Articles See All Whitepapers See All Acoustics See All Asset & Process Monitoring See All Custom Sensors See All Data Acquisition & Analysis See All Durability & Fatigue See All Electric Power Testing See All NVH See All Reliability See All Smart Sensors See All Vibration See All Weighing See All Automotive & Ground Transportation See All Calibration See All Installation, Maintenance & Repair See All Support Brüel & Kjær See All Release Notes See All Compliance See All Our People
arrow_back_ios

Main Menu

See All CANHEAD See All GenHS See All LAN-XI See All MGCplus See All Optical Interrogators See All QuantumX See All SomatXR See All Fusion-LN See All Accessories See All Hand-held Software See All Accessories See All BK Connect / Pulse See All API See All Microphone Sets See All Microphone Cartridges See All Acoustic Calibrators See All Special Microphones See All Microphone Pre-amplifiers See All Sound Sources See All Accessories for acoustic transducers See All Experimental testing See All Transducer Manufacturing (OEM) See All Accessories See All Non-rotating (calibration) See All Rotating See All CCLD (IEPE) accelerometers See All Charge Accelerometers See All Impulse hammers / impedance heads See All Cables See All Accessories See All Electroacoustics See All Noise Source Identification See All Environmental Noise See All Sound Power and Sound Pressure See All Noise Certification See All Industrial Process Control See All Structural Health Monitoring See All Electrical Devices Testing See All Electrical Systems Testing See All Grid Testing See All High-Voltage Testing See All Vibration Testing with Electrodynamic Shakers See All Structural Dynamics See All Machine Analysis and Diagnostics See All Process Weighing See All Calibration Services for Transducers See All Calibration Services for Handheld Instruments See All Calibration Services for Instruments & DAQ See All On-Site Calibration See All Resources See All Software License Management

A new TWI Members’ Core Research Programme (CRP) has been set up in collaboration with HBM Prenscia. The TWI CRP aims to provide a comprehensive evaluation of fatigue performance enhancement through elimination of porosity in additively manufactured (AM) material by Selective Laser Melting (SLM).
 

Industrial need

With its greater design freedom for complex shaped components and its higher buy-to-fly ratio with minimal material waste compared with conventional manufacturing, SLM of metallic alloys is of significant interest for a number of industrial applications. However, there is a lack of mechanical properties design data for AM materials to give designers confidence in designing and using SLM parts. Currently, companies use single part qualification, resulting in very conservative ‘design allowables’ and high costs associated with single part qualification. Equally, component quality is sensitive to a number of factors, including both the SLM system set up and processing parameters related to specific alloy systems. These parameters significantly affect resultant defect populations in the microstructures of the as-SLM processed material, which determine the subsequent as-built mechanical properties. In particular, fatigue performance, which is dictated by the size, morphology and volume fraction of the defects present. Whilst tensile properties are commonly examined, there is much less data available on fatigue performance, and where available is often limited to a small number of test samples per condition in low cycle fatigue.

 

Concept

This project differs from a conventional TWI CRP because the size and scope of the programme will be considerably extended to leverage additional resources, provided in-kind from HBM Prenscia. Coupled with TWI’s expert processing knowledge of SLM, the Advanced Materials Characterization & Test facility (AMCT) will generate statistically significant fatigue performance data on a selection of industrially relevant materials (Ti6Al4V, In718, AlSi10Mg). Additionally, this project aims to quantify the effects of post processing (HIP vs. non-HIP) variations in raw material production, powder sourcing, handling and recycling of powders in SLM. Thus, enabling TWI Members to make evidence-based decisions in the design, modelling and development of new applications for SLM components, and add new strain-life fatigue materials data for the nCode Premium Materials Database.

Key deliverables of the TWI CRP

A proven methodology for the derivation of optimised SLM process parameters with definitive fatigue performance data to demonstrate and support this.
Statistically significant data sets benchmarking fatigue performance of a range of materials (Ti6Al4V, In718, AlSi10Mg,) produced by optimised SLM processing.
A set of guidelines addressing SLM powder sourcing, handling and recycling, and how these can be implemented.

About HBK

Accelerate your product innovation with HBK solutions in virtual, physical and in-process testing.  From the electrification of mobility to the advancement of smart manufacturing, we support you throughout the entire product lifecycle, sharing your mission for a cleaner, healthier, and more productive world.